CDVI CAA470A-T 2-Door Expansion Module

Designed to extend secure, enterprise-grade access control, the CDVI CAA470A-T 2-Door Expansion Module lets integrators and facilities managers add two readers or keypads quickly and reliably. As a CDVI CENTAUR expansion module, it provides essential door control capability—two lock outputs backed by 2 Form C 15A/28V DC relays—and supports up to three modules per CT-V900-A controller, making it ideal for phased rollouts or retrofits.

E-Bus connectivity to the CT-V900-A extends reach to 1,220 meters (4,000 ft), reducing wiring complexity and installation time for larger sites. Onboard inputs for door contacts and REX devices, along with LED/buzzer reader outputs, streamline monitoring and local diagnostics so security teams spend less time troubleshooting. Supports common reader formats including Wiegand and magnetic stripe, providing interoperability with existing door hardware and card technologies.

Deploy the CAA470A-T in commercial, institutional, or industrial environments to strengthen security, surveillance, and access monitoring without costly controller swaps. Add this CDVI expansion module to your next access control design to scale coverage and improve operational efficiency.

• Seamlessly expand an existing CENTAUR access control system to manage two additional readers or keypads, enabling quick site upgrades without replacing the main controller
• Long-distance E-Bus connectivity (up to 1,220 m / 4,000 ft) lowers cabling costs and supports distributed door hardware across large facilities
• Dual Form C 15A/28V DC relays deliver dependable lock control for fail-safe or fail-secure configurations at critical entry points
• Built-in LED and buzzer outputs plus multiple inputs for door contacts and REX devices simplify on-site diagnostics and real-time monitoring
• Scalable architecture—support up to three CAA470A-T modules per CT-V900-A—to cost-effectively grow security coverage as facilities expand